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311421

Sigma-Aldrich

Ácido perclórico

70%, 99.999% trace metals basis

Sinônimo(s):

PCA

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About This Item

Fórmula linear:
HClO4
Número CAS:
7601-90-3
Peso molecular:
100.46
Número MDL:
MFCD00011325
Código UNSPSC:
12352302
ID de substância PubChem:
24858523
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.

pressão de vapor

6.8 mmHg ( 25 °C)

Nível de qualidade

100

Ensaio

70%
99.999% trace metals basis

Formulário

liquid

adequação da reação

reagent type: oxidant

concentração

≥70-- < 90%

p.e.

ca.203 °C/at 1.013 hPa

pf

18 °C

solubilidade

water: miscible (completely)

densidade

1.664 g/mL at 25 °C

traços de cátion

Al: ≤0.3 ppm
Ca: ≤0.3 ppm
Fe: ≤ 0.1 ppm
Na: 3.1 ppm
Zn: ≤ 0.1 ppm

cadeia de caracteres SMILES

OCl(=O)(=O)=O

InChI

1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)

chave InChI

VLTRZXGMWDSKGL-UHFFFAOYSA-N

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Aplicação

Perchloric acid (HClO4) can be used in the preparation of:
  • Silica supported perchloric acid (HClO4-SiO2) which is used as a catalyst in geminal diacylation of aldehydes, synthesis of amidoalkyl naphthols, primary carbamates, and tetrasubstituted imidazoles.[1][2][3][4]
  • Alumina supported perchloric acid (Al2O3-HClO4), which is used as a catalyst in the synthesis of α-(α-amidobenzyl)-β-naphthols.[5]
  • Fe3O4@SiO2-HClO4 catalyst, which is used in the synthesis of 1,4-dihydropyridine derivatives.[6]

Perchloric acid can be used as:      
  •   A reaction medium in oxidation reactions.[7][8]       
  • A reagent for the preparation of fluorinated polymer electrolytes using poly (vinylidenefluoride-cohexafluoropropylene) (PVDF-HFP) for fuel cell applications.[9]        
  • A dopant in the preparation of perchloric acid-functionalized polyaniline (HClO4/PANI) catalyst for the synthesis of 2-substituted benzothiazoles by condensation reaction between o-aminothiophenol with aldehydes.[10]

Palavra indicadora

Danger

Frases de perigo

H271,H290,H302,H314,H373

Classificações de perigo

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 1 - Skin Corr. 1A - STOT RE 2

Órgãos-alvo

Thyroid

Código de classe de armazenamento

5.1A - Strongly oxidizing hazardous materials

Classe de risco de água (WGK)

WGK 1

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificados de análise (COA)

Lot/Batch Number
MKCX4900
MKCW5733
MKCV2909
MKCR6144
MKCS6328

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Kinetics of oxidation of pantothenic acid by chloramine-T in perchloric acid and in alkaline medium catalyzed by OsO4: A mechanistic approach
Jagadeesh RV
International Journal of Chemical Kinetics, 37(4), 201-210 (2005)
Silica supported perchloric acid (HClO4-SiO2): an efficient reagent for the preparation of primary carbamates under solvent-free conditions
Modarresi-Alam AR, et al.
Tetrahedron, 63(36), 8723-8726 (2007)
Perchloric acid-doped polyaniline as an efficient and reusable catalyst for the synthesis of 2-substituted benzothiazoles
Abdollahi-Alibeik M, et al.
Phosphorus, Sulfur, and Silicon and the Related Elements, 184(12), 3182-3190 (2009)
Preparation of 1, 4-dihydropyridine derivatives using perchloric acid adsorbed on magnetic Fe3O4 nanoparticles coated with silica
Shafiee M, et al.
Current Nanoscience , 9(2), 197-201 (2013)
Vander Voort GF, et al.
Metallography, Principles and Practice By George F. Vander Voort null
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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